This paper reports a complete transmission system for next generation high speed optical communication systems networks for short reach applications such as access networks and data center interconnects. It consists of a 63 GHz DFB-EAM transmitter and a SOA-PIN-TIA receiver with -23.5 dBm sensitivity at a bit error rate (BER) ...

The goals when running a mobile network have remained the same over the years, namely reducing CAPEX/OPEX by decreasing the necessary level of manual intervention and increasing the network performance. However, the complexity has dramatically increased: 5G networks will have to be able to deal with dynamic slice management and ...

In this paper, the problem of Bayesian compressed sensing is studied. Given the distribution of the source, and under-determined linear measurements of the source vector, a new recovery algorithm proposed that asymptotically achieves the optimal performance.

Whether as telecommunications or power systems, networks are very important in everyday life. Maintaining these networks properly functional and connected, even under attacks or failures, is of special concern. This topic has been previously studied with a whole network robustness perspective. With this perspective, whenever a node is removed the ...

In this work, we are interested in finding the most efficient use of a budget to promote an opinion by paying agents within a group to supplant their true opinions. We model opinions as continuous scalars ranging from 0 to 1 with 1 representing extremely positive opinion. We focus on ...

This article attempts to provide a set of new directions and ideas for research in the ever vibrant fields of telecom and IoT security. It attempts by no means to present a complete set of security solutions; this would be by definition impossible. It rather serves as a short but ...

Customer satisfaction drives better performance in the market and increased company value. Unfortunately, as is evident from lagging NPS scores, traditional service providers including MSOs have not performed as well as other industries despite allocating a proportionally much larger share of human resources in customer care. In contrast, web scale ...

This is an invited presentation on the developments and trends in the area of Active Antennas and Array Systems in 5G Mobile Communication Services. The presentation covers general trends in the mobile communication industry in terms of active and integrated antennas and massive MIMO systems. - A general overview of ...

An optical network, like any system, has to be observable before being subject to optimization, and this is the main capability that ORCHESTRA network introduces. ORCHESTRA's high observability relies on information provided by the coherent transceivers that can be extended, almost for free, to operate as software defined optical performance ...

To alleviate the problem of scarce spectrum resources and meet the ever-increasing of mobile broadband data traffic demands, Licensed Assisted Access-Long Term Evolution (LAA-LTE), operating in the unlicensed spectrum, is a promising solution. Considering that the unlicensed spectrum is shared by a few incumbent systems, such as WiFi, one main ...

This paper addresses the critical problem of high overhead in channel information acquisition for hybrid precoding in massive multiple-input multiple-output (MIMO) system. With the employment of large-scale massive antennas in the next generation 5G wireless system, the high overhead in the estimation of channel state information (CSI) for the precoding ...

This document is a deliverable of the project Flex5Gware, which is funded by the European Commission. It contains the contributions from Nokia as Chapter 6 "Multiband transmitter" and Chapter 13 "Multi-chain MIMO transmitter".

Achieving good tradeoff between the resource reuse and the interference avoidance is the key challenge for 5G dense wireless networks. In this paper we analyze the resource utilization region and determine the transition point of the load budget in which the networks move from an efficient noise-limited resource utilization region ...

This final deliverable from the WP5 of mmMAGIC project details the multi-antenna, multi-node and the transceiver hardware modelling related analyses and solutions developed over the 2 year project duration. The multi-antenna studies have identified hybrid beamforming as a key solution to meet the complexity and performance needs of mm-wave transceivers. ...

The dynamicity and heterogeneity of cloud resources require significant expertise and manual labour to properly configure these resources for delivering acceptable quality of service levels to the end users. Cloud resource configuration and orchestration is, in facts, challenging because it requires dynamic coordination across different infrastructure layers. For this reason, ...

We demonstrate the first single carrier, single polarization PAM8 Intensity Modulation Direct Detection system delivering 168 Gb/s over 80km of SMF below the Hard-Decision FEC threshold of 3.8×10-3, with a receiver processing relying only on a 3-tap FFE

This document represents one section for a chapter in the book "5G Networks - an European vision". It presents work done within the 5GPPP-H2020 project Flex5Gware funded by the European Commission. It deals with the generation of modulated RF signals for MIMO base stations as one-bit DSM and PWM modulated ...

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